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CVE-2016-1939
Mozilla Firefox before 44.0 stores cookies with names containing vertical tab characters, which allows remote attackers to obtain…
Medium5.3EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
Mozilla Firefox before 44.0 stores cookies with names containing vertical tab characters, which allows remote attackers to obtain sensitive information by reading HTTP Cookie headers. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-7208.
Timeline
ID reserved
By mozilla
- 11 days later
· 11 days later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
n/a
- affected n/a
References (8)
- 1034825 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-2880-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2880-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.mozilla.org/security/announce/2016/mfsa2016-04.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2016:0309 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1233784 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201605-06 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- openSUSE-SU-2016:0306 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2016-3028 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-1939)Record last updated .